Art Shapiro, distinguished professor of evolution and ecology at UC Davis, walks along one of his study areas, Gates Canyon Road, Vacaville. This image was taken Jan. 25, 2014. (Photo by Kathy Keatley Garvey)

Art Shapiro, distinguished professor of evolution and ecology at UC Davis, walks along one of his study areas, Gates Canyon Road, Vacaville. This image was taken Jan. 25, 2014. (Photo by Kathy Keatley Garvey)